... name for a specific Card. The constructor for the class (lines 9–12) receives two Strings that it uses to initialize face and suit. Method toString (lines 15–17) creates a String consisting of the face of the card, the String “ of ” and the suit of the card.2 Card’s toString method can be invoked explicitly to obtain a string representation of a Card object (e.g., “Ace of Spades”). The toString method of an object is called implicitly when the object is used where a String is expected (e.g., when printf outputs the object as a String using the %s format specifier or when the object is concatenated to a String using the + operator). For this behavior to occur, toString must be declared with the header shown in Fig. 7.11.
Get Java How To Program, Late Objects, 11th Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
